[R] Getting more results from lda (MASS)

2011-07-25 Thread Stephen T
Hello, I am using linear discriminant analysis (lda) from the MASS library to classify data in two classes. 1. How do I get the full LDA model? The function lda reports coefficients but not the constant term? Currently I run the linear model function lm on the LDA scores and variables to find

[R] (no subject)

2011-03-08 Thread Stephen T.
Hi, I am exporting an HDF5 file from Matlab (hdf5write function). It contains several datasets: one scalar, one vectory, one 2-D array, and one 3-D array. The hdf5read() function in the hdf5 library seems to load everything except the 3-D array. There are no errors reported even with verbosity=

[R] removing margin space between columns in lattice plots

2010-10-23 Thread Stephen T.
Hi list, >From the xyplot() documentation I'm guessing this may not be possible, but is >there a way to specify a scale definition something between relation="free" >and relation="same" such that the scales are fixed across rows and column >margins are removed for a M x N conditioning plot (so

Re: [R] large files produced from image plots?

2010-09-08 Thread Stephen T.
Re: [R] large files produced from image plots? > From: baptiste.aug...@googlemail.com > Date: Wed, 8 Sep 2010 19:41:46 +0200 > CC: r-help@r-project.org > To: obsessiv...@hotmail.com > > Hi, > > Have you tried the recent rasterImage() function? > > HTH, > > baptis

[R] large files produced from image plots?

2010-09-08 Thread Stephen T.
Hi list, I wonder if anyone has thoughts on making image plots in R [using image() or image.plot(), or filled.contour()]- I've made quite a bit now, but they seem quite large in size when exported to pdf file format (even after compressing with pdftk or ghostscript, which I regularly do). I kno

Re: [R] list of closures

2010-08-26 Thread Stephen T.
hilippe > > On 26/08/10 06:28, Gabor Grothendieck wrote: > > On Thu, Aug 26, 2010 at 12:04 AM, Stephen T. > > wrote: > >> > >> Hi, I wanted to create a list of closures. When I use Map(), mapply(), > >> lapply(), etc., to create this list, it appears

Re: [R] list of closures

2010-08-26 Thread Stephen T.
obsessiv...@hotmail.com > CC: r-help@r-project.org > > On Thu, Aug 26, 2010 at 12:04 AM, Stephen T. wrote: > > > > Hi, I wanted to create a list of closures. When I use Map(), mapply(), > > lapply(), etc., to create this list, it appears that the wrong arguments

[R] list of closures

2010-08-25 Thread Stephen T.
Hi, I wanted to create a list of closures. When I use Map(), mapply(), lapply(), etc., to create this list, it appears that the wrong arguments are being passed to the main function. For example: Main function: > adder <- function(x) function(y) x + y Creating list of closures with Map(): > plus

Re: [R] drop unused levels in lattice dotplot axis?

2010-08-24 Thread Stephen T.
On Tue, Aug 24, 2010 at 4:25 AM, Stephen T. wrote: Hi list, I have a data set - something like this dfr <- data.frame(A=factor(letters[1:25]),B=runif(25), C=sample(LETTERS[1:4],25,replace=TRUE)) and I want to create a dotplot: library(lattice)dotplot(A ~ B | C, data=

[R] drop unused levels in lattice dotplot axis?

2010-08-24 Thread Stephen T.
Hi list, I have a data set - something like this dfr <- data.frame(A=factor(letters[1:25]),B=runif(25), C=sample(LETTERS[1:4],25,replace=TRUE)) and I want to create a dotplot: library(lattice)dotplot(A ~ B | C, data=dfr, scales=list(y=list(relation="free"))) but this puts uneven